./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:36:27,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:36:27,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:36:27,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:36:27,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:36:27,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:36:27,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:36:27,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:36:27,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:36:27,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:36:27,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:36:27,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:36:27,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:36:27,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:36:27,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:36:27,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:36:27,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:36:27,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:36:27,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:36:27,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:36:27,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:36:27,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:36:27,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:36:27,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:36:27,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:36:27,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:36:27,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:36:27,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:36:27,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:36:27,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:36:27,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:36:27,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:36:27,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:36:27,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:36:27,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:36:27,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:36:27,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:36:27,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:36:27,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:36:27,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:36:27,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:36:27,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:36:27,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:36:27,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:36:27,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:36:27,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:36:27,214 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:36:27,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:36:27,214 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:36:27,214 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:36:27,222 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:36:27,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:36:27,223 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:36:27,223 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:36:27,224 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:36:27,224 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:36:27,224 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:36:27,224 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:36:27,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:36:27,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:36:27,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:36:27,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:36:27,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:36:27,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:36:27,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:36:27,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:36:27,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:36:27,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:36:27,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:36:27,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:36:27,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:36:27,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:36:27,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:36:27,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:36:27,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:36:27,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:36:27,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:36:27,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:36:27,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:36:27,231 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-13 02:36:27,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:36:27,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:36:27,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:36:27,542 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:36:27,543 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:36:27,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 02:36:27,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/bfb7fda0b/02d2ce147d314196905891260063757e/FLAG580b0f41b [2021-11-13 02:36:28,580 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:36:28,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 02:36:28,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/bfb7fda0b/02d2ce147d314196905891260063757e/FLAG580b0f41b [2021-11-13 02:36:29,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/bfb7fda0b/02d2ce147d314196905891260063757e [2021-11-13 02:36:29,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:36:29,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:36:29,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:36:29,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:36:29,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:36:29,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:36:29" (1/1) ... [2021-11-13 02:36:29,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16eed60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:29, skipping insertion in model container [2021-11-13 02:36:29,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:36:29" (1/1) ... [2021-11-13 02:36:29,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:36:29,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:36:31,237 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:36:31,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:36:31,471 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 02:36:32,612 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-13 02:36:32,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-13 02:36:32,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-13 02:36:32,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-13 02:36:32,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:32,759 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 02:36:32,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7520172b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:32, skipping insertion in model container [2021-11-13 02:36:32,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:36:32,760 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:36:32,762 INFO L158 Benchmark]: Toolchain (without parser) took 3739.52ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 68.5MB in the beginning and 64.7MB in the end (delta: 3.8MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2021-11-13 02:36:32,763 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:36:32,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3735.33ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 68.5MB in the beginning and 64.7MB in the end (delta: 3.8MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2021-11-13 02:36:32,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3735.33ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 68.5MB in the beginning and 64.7MB in the end (delta: 3.8MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6417]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:36:35,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:36:35,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:36:35,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:36:35,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:36:35,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:36:35,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:36:35,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:36:35,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:36:35,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:36:35,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:36:35,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:36:35,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:36:35,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:36:35,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:36:35,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:36:35,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:36:35,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:36:35,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:36:35,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:36:35,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:36:35,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:36:35,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:36:35,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:36:35,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:36:35,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:36:35,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:36:35,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:36:35,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:36:35,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:36:35,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:36:35,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:36:35,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:36:35,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:36:35,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:36:35,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:36:35,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:36:35,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:36:35,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:36:35,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:36:35,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:36:35,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:36:35,491 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:36:35,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:36:35,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:36:35,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:36:35,493 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:36:35,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:36:35,494 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:36:35,494 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:36:35,494 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:36:35,495 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:36:35,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:36:35,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:36:35,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:36:35,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:36:35,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:36:35,499 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:36:35,499 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:36:35,499 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:36:35,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:36:35,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:36:35,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:36:35,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:36:35,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:36:35,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:36:35,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:36:35,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:36:35,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:36:35,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:36:35,502 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:36:35,502 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:36:35,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:36:35,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:36:35,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:36:35,503 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-13 02:36:35,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:36:36,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:36:36,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:36:36,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:36:36,014 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:36:36,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 02:36:36,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/30aa341b2/91b9d99b3ebd4fff9993dd4203ddab36/FLAG5275ea185 [2021-11-13 02:36:37,151 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:36:37,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 02:36:37,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/30aa341b2/91b9d99b3ebd4fff9993dd4203ddab36/FLAG5275ea185 [2021-11-13 02:36:37,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/data/30aa341b2/91b9d99b3ebd4fff9993dd4203ddab36 [2021-11-13 02:36:37,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:36:37,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:36:37,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:36:37,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:36:37,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:36:37,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:36:37" (1/1) ... [2021-11-13 02:36:37,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e44fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:37, skipping insertion in model container [2021-11-13 02:36:37,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:36:37" (1/1) ... [2021-11-13 02:36:37,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:36:37,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:36:40,977 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-13 02:36:40,980 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-13 02:36:40,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-13 02:36:40,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-13 02:36:41,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:41,075 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:36:41,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:36:41,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-13 02:36:41,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-13 02:36:41,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-13 02:36:41,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-13 02:36:41,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:41,647 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:36:42,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-13 02:36:42,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-13 02:36:42,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-13 02:36:42,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-13 02:36:42,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:36:42,430 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:36:42,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42 WrapperNode [2021-11-13 02:36:42,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:36:42,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:36:42,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:36:42,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:36:42,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:42,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:42,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:36:42,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:36:42,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:36:42,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:36:42,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:42,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:42,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:42,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:43,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:43,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:43,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:43,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:36:43,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:36:43,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:36:43,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:36:43,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (1/1) ... [2021-11-13 02:36:43,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:36:43,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:36:43,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:36:43,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:36:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 02:36:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 02:36:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-13 02:36:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-13 02:36:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 02:36:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 02:36:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 02:36:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 02:36:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 02:36:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 02:36:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 02:36:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 02:36:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 02:36:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 02:36:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:36:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 02:36:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-13 02:36:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-13 02:36:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 02:36:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 02:36:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 02:36:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 02:36:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-11-13 02:36:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-11-13 02:36:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 02:36:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 02:36:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 02:36:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 02:36:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 02:36:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 02:36:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 02:36:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 02:36:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 02:36:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 02:36:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-13 02:36:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-13 02:36:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 02:36:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 02:36:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:36:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 02:36:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 02:36:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:36:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:36:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:36:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 02:36:43,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 02:36:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-13 02:36:43,258 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-13 02:36:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 02:36:43,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 02:36:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-13 02:36:43,259 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-13 02:36:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-11-13 02:36:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-11-13 02:36:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 02:36:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 02:36:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-13 02:36:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-13 02:36:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-11-13 02:36:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-11-13 02:36:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 02:36:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 02:36:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 02:36:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 02:36:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 02:36:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 02:36:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 02:36:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 02:36:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 02:36:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 02:36:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 02:36:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 02:36:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 02:36:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 02:36:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-13 02:36:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-13 02:36:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:36:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 02:36:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:36:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 02:36:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 02:36:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 02:36:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 02:36:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-13 02:36:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-13 02:36:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 02:36:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 02:36:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 02:36:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 02:36:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 02:36:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 02:36:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:36:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:36:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:36:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:36:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:36:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:36:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 02:36:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 02:36:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-13 02:36:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-13 02:36:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 02:36:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 02:36:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-13 02:36:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-13 02:36:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 02:36:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 02:36:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-13 02:36:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-13 02:36:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 02:36:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 02:36:43,280 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 02:36:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 02:36:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 02:36:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 02:36:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:36:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-13 02:36:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-13 02:36:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-13 02:36:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-13 02:36:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-13 02:36:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-13 02:36:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:36:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:36:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-11-13 02:36:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-11-13 02:36:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:36:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:36:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:36:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:36:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 02:36:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:36:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 02:36:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 02:36:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:36:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 02:36:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 02:36:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 02:36:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-13 02:36:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-13 02:36:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-13 02:36:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-13 02:36:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 02:36:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 02:36:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-13 02:36:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-13 02:36:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 02:36:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 02:36:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-13 02:36:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-13 02:36:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 02:36:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 02:36:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 02:36:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 02:36:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 02:36:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 02:36:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 02:36:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 02:36:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:36:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-13 02:36:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-13 02:36:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 02:36:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 02:36:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-13 02:36:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-13 02:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-13 02:36:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-13 02:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-13 02:36:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-13 02:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 02:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-13 02:36:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-13 02:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 02:36:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 02:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 02:36:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 02:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 02:36:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 02:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_66 [2021-11-13 02:36:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_66 [2021-11-13 02:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-13 02:36:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-13 02:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-13 02:36:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-13 02:36:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 02:36:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 02:36:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 02:36:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 02:36:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 02:36:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 02:36:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 02:36:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 02:36:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:36:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:36:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:36:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:36:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 02:36:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 02:36:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-13 02:36:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-13 02:36:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 02:36:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 02:36:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_68 [2021-11-13 02:36:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_68 [2021-11-13 02:36:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-13 02:36:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-13 02:36:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-13 02:36:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-13 02:36:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 02:36:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 02:36:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 02:36:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 02:36:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-11-13 02:36:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-11-13 02:36:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 02:36:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 02:36:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-13 02:36:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-13 02:36:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 02:36:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 02:36:50,787 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 02:37:22,507 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 02:37:22,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:37:22,775 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:37:22,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:22 BoogieIcfgContainer [2021-11-13 02:37:22,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:37:22,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:37:22,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:37:22,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:37:22,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:36:37" (1/3) ... [2021-11-13 02:37:22,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b423dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:22, skipping insertion in model container [2021-11-13 02:37:22,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:36:42" (2/3) ... [2021-11-13 02:37:22,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b423dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:22, skipping insertion in model container [2021-11-13 02:37:22,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:22" (3/3) ... [2021-11-13 02:37:22,789 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-13 02:37:22,795 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:37:22,795 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 02:37:22,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:37:22,867 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:37:22,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 02:37:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 1805 states, 1186 states have (on average 1.245362563237774) internal successors, (1477), 1219 states have internal predecessors, (1477), 519 states have call successors, (519), 98 states have call predecessors, (519), 97 states have return successors, (514), 505 states have call predecessors, (514), 514 states have call successors, (514) [2021-11-13 02:37:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-13 02:37:22,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:22,940 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:22,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:37:22,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:22,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2048454615, now seen corresponding path program 1 times [2021-11-13 02:37:22,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:22,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822134668] [2021-11-13 02:37:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:22,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:22,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:22,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:23,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:37:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:37:24,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:37:24,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:37:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-13 02:37:24,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 02:37:25,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:37:25,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822134668] [2021-11-13 02:37:25,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822134668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:37:25,333 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:37:25,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:37:25,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575255644] [2021-11-13 02:37:25,335 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:37:25,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:37:25,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:37:25,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:37:25,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:37:25,386 INFO L87 Difference]: Start difference. First operand has 1805 states, 1186 states have (on average 1.245362563237774) internal successors, (1477), 1219 states have internal predecessors, (1477), 519 states have call successors, (519), 98 states have call predecessors, (519), 97 states have return successors, (514), 505 states have call predecessors, (514), 514 states have call successors, (514) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-13 02:37:27,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:35,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:37:35,650 INFO L93 Difference]: Finished difference Result 7025 states and 10021 transitions. [2021-11-13 02:37:35,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:37:35,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2021-11-13 02:37:35,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:37:35,730 INFO L225 Difference]: With dead ends: 7025 [2021-11-13 02:37:35,730 INFO L226 Difference]: Without dead ends: 5228 [2021-11-13 02:37:35,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:37:35,761 INFO L933 BasicCegarLoop]: 3499 mSDtfsCounter, 6246 mSDsluCounter, 3838 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 977 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8427.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6246 SdHoareTripleChecker+Valid, 7337 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.33ms SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9526.81ms IncrementalHoareTripleChecker+Time [2021-11-13 02:37:35,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6246 Valid, 7337 Invalid, 2007 Unknown, 0 Unchecked, 83.33ms Time], IncrementalHoareTripleChecker [977 Valid, 1029 Invalid, 1 Unknown, 0 Unchecked, 9526.81ms Time] [2021-11-13 02:37:35,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2021-11-13 02:37:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5202. [2021-11-13 02:37:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5202 states, 3441 states have (on average 1.2374309793664633) internal successors, (4258), 3535 states have internal predecessors, (4258), 1472 states have call successors, (1472), 287 states have call predecessors, (1472), 286 states have return successors, (1469), 1442 states have call predecessors, (1469), 1469 states have call successors, (1469) [2021-11-13 02:37:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7199 transitions. [2021-11-13 02:37:36,365 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7199 transitions. Word has length 134 [2021-11-13 02:37:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:37:36,371 INFO L470 AbstractCegarLoop]: Abstraction has 5202 states and 7199 transitions. [2021-11-13 02:37:36,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-13 02:37:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7199 transitions. [2021-11-13 02:37:36,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-13 02:37:36,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:36,393 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:36,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 02:37:36,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:37:36,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:37:36,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:36,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1730628574, now seen corresponding path program 1 times [2021-11-13 02:37:36,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:36,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551720106] [2021-11-13 02:37:36,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:36,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:36,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:36,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:37:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:37:37,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:37:37,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:37:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-13 02:37:38,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 02:37:38,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:37:38,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551720106] [2021-11-13 02:37:38,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551720106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:37:38,722 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:37:38,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:37:38,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111045954] [2021-11-13 02:37:38,722 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:37:38,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:37:38,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:37:38,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:37:38,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:37:38,726 INFO L87 Difference]: Start difference. First operand 5202 states and 7199 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 02:37:40,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:37:48,633 INFO L93 Difference]: Finished difference Result 20403 states and 28292 transitions. [2021-11-13 02:37:48,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:37:48,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2021-11-13 02:37:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:37:48,777 INFO L225 Difference]: With dead ends: 20403 [2021-11-13 02:37:48,777 INFO L226 Difference]: Without dead ends: 15226 [2021-11-13 02:37:48,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:37:48,818 INFO L933 BasicCegarLoop]: 3546 mSDtfsCounter, 6218 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1021 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8069.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6218 SdHoareTripleChecker+Valid, 7329 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.23ms SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9053.87ms IncrementalHoareTripleChecker+Time [2021-11-13 02:37:48,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6218 Valid, 7329 Invalid, 2037 Unknown, 0 Unchecked, 50.23ms Time], IncrementalHoareTripleChecker [1021 Valid, 1015 Invalid, 1 Unknown, 0 Unchecked, 9053.87ms Time] [2021-11-13 02:37:48,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15226 states. [2021-11-13 02:37:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15226 to 15152. [2021-11-13 02:37:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15152 states, 10033 states have (on average 1.2399083026014153) internal successors, (12440), 10329 states have internal predecessors, (12440), 4272 states have call successors, (4272), 857 states have call predecessors, (4272), 844 states have return successors, (4311), 4148 states have call predecessors, (4311), 4269 states have call successors, (4311) [2021-11-13 02:37:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15152 states to 15152 states and 21023 transitions. [2021-11-13 02:37:50,004 INFO L78 Accepts]: Start accepts. Automaton has 15152 states and 21023 transitions. Word has length 148 [2021-11-13 02:37:50,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:37:50,007 INFO L470 AbstractCegarLoop]: Abstraction has 15152 states and 21023 transitions. [2021-11-13 02:37:50,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 02:37:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 15152 states and 21023 transitions. [2021-11-13 02:37:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-13 02:37:50,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:50,015 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:50,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:37:50,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:37:50,242 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:37:50,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash 20671367, now seen corresponding path program 1 times [2021-11-13 02:37:50,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:50,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192776640] [2021-11-13 02:37:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:50,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:50,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:50,251 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:50,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:37:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:37:51,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:37:51,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:37:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-13 02:37:51,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 02:37:52,295 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:37:52,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192776640] [2021-11-13 02:37:52,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192776640] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:37:52,295 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:37:52,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:37:52,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215203451] [2021-11-13 02:37:52,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:37:52,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:37:52,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:37:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:37:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:37:52,297 INFO L87 Difference]: Start difference. First operand 15152 states and 21023 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 02:37:54,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:37:55,922 INFO L93 Difference]: Finished difference Result 42511 states and 58865 transitions. [2021-11-13 02:37:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:37:55,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2021-11-13 02:37:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:37:56,134 INFO L225 Difference]: With dead ends: 42511 [2021-11-13 02:37:56,134 INFO L226 Difference]: Without dead ends: 27384 [2021-11-13 02:37:56,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:37:56,220 INFO L933 BasicCegarLoop]: 2939 mSDtfsCounter, 2046 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2337.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.65ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2393.79ms IncrementalHoareTripleChecker+Time [2021-11-13 02:37:56,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 5332 Invalid, 77 Unknown, 0 Unchecked, 18.65ms Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 2393.79ms Time] [2021-11-13 02:37:56,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27384 states. [2021-11-13 02:37:57,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27384 to 27341. [2021-11-13 02:37:57,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27341 states, 17968 states have (on average 1.238479519145147) internal successors, (22253), 18540 states have internal predecessors, (22253), 7719 states have call successors, (7719), 1676 states have call predecessors, (7719), 1651 states have return successors, (7809), 7460 states have call predecessors, (7809), 7716 states have call successors, (7809) [2021-11-13 02:37:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27341 states to 27341 states and 37781 transitions. [2021-11-13 02:37:58,131 INFO L78 Accepts]: Start accepts. Automaton has 27341 states and 37781 transitions. Word has length 146 [2021-11-13 02:37:58,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:37:58,131 INFO L470 AbstractCegarLoop]: Abstraction has 27341 states and 37781 transitions. [2021-11-13 02:37:58,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 02:37:58,132 INFO L276 IsEmpty]: Start isEmpty. Operand 27341 states and 37781 transitions. [2021-11-13 02:37:58,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-13 02:37:58,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:58,135 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:58,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:37:58,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:37:58,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:37:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:58,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1165994526, now seen corresponding path program 1 times [2021-11-13 02:37:58,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:58,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911417018] [2021-11-13 02:37:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:58,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:58,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:37:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:37:59,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:37:59,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-13 02:38:00,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 02:38:00,444 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:00,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911417018] [2021-11-13 02:38:00,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911417018] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:00,444 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:00,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:38:00,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326453452] [2021-11-13 02:38:00,444 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:00,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:00,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:00,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:00,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:00,446 INFO L87 Difference]: Start difference. First operand 27341 states and 37781 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-13 02:38:02,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:38:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:09,169 INFO L93 Difference]: Finished difference Result 65041 states and 89233 transitions. [2021-11-13 02:38:09,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:09,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 150 [2021-11-13 02:38:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:09,532 INFO L225 Difference]: With dead ends: 65041 [2021-11-13 02:38:09,532 INFO L226 Difference]: Without dead ends: 37725 [2021-11-13 02:38:09,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:09,647 INFO L933 BasicCegarLoop]: 4302 mSDtfsCounter, 3964 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6650.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3964 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.87ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7282.10ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:09,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3964 Valid, 8365 Invalid, 1131 Unknown, 0 Unchecked, 37.87ms Time], IncrementalHoareTripleChecker [41 Valid, 1089 Invalid, 1 Unknown, 0 Unchecked, 7282.10ms Time] [2021-11-13 02:38:09,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37725 states. [2021-11-13 02:38:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37725 to 37665. [2021-11-13 02:38:11,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37665 states, 25182 states have (on average 1.2341354936065443) internal successors, (31078), 25942 states have internal predecessors, (31078), 10027 states have call successors, (10027), 2486 states have call predecessors, (10027), 2453 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37665 states to 37665 states and 51191 transitions. [2021-11-13 02:38:12,127 INFO L78 Accepts]: Start accepts. Automaton has 37665 states and 51191 transitions. Word has length 150 [2021-11-13 02:38:12,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:12,132 INFO L470 AbstractCegarLoop]: Abstraction has 37665 states and 51191 transitions. [2021-11-13 02:38:12,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-13 02:38:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 37665 states and 51191 transitions. [2021-11-13 02:38:12,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-13 02:38:12,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:12,136 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:12,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:12,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:12,350 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:12,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 915898716, now seen corresponding path program 1 times [2021-11-13 02:38:12,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:12,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368179809] [2021-11-13 02:38:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:12,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:12,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:12,354 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:12,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:38:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:13,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:13,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-13 02:38:15,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-13 02:38:15,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:15,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368179809] [2021-11-13 02:38:15,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368179809] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:15,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:15,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-13 02:38:15,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745605988] [2021-11-13 02:38:15,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:15,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:38:15,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:15,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:38:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:15,779 INFO L87 Difference]: Start difference. First operand 37665 states and 51191 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-13 02:38:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:17,530 INFO L93 Difference]: Finished difference Result 37671 states and 51196 transitions. [2021-11-13 02:38:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:17,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 186 [2021-11-13 02:38:17,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:17,725 INFO L225 Difference]: With dead ends: 37671 [2021-11-13 02:38:17,726 INFO L226 Difference]: Without dead ends: 37669 [2021-11-13 02:38:17,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:38:17,746 INFO L933 BasicCegarLoop]: 2477 mSDtfsCounter, 2391 mSDsluCounter, 9883 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 12360 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.17ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.59ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:17,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2402 Valid, 12360 Invalid, 37 Unknown, 0 Unchecked, 45.17ms Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 104.59ms Time] [2021-11-13 02:38:17,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37669 states. [2021-11-13 02:38:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37669 to 37669. [2021-11-13 02:38:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37669 states, 25185 states have (on average 1.2341076037323804) internal successors, (31081), 25945 states have internal predecessors, (31081), 10027 states have call successors, (10027), 2487 states have call predecessors, (10027), 2454 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:19,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37669 states to 37669 states and 51194 transitions. [2021-11-13 02:38:19,915 INFO L78 Accepts]: Start accepts. Automaton has 37669 states and 51194 transitions. Word has length 186 [2021-11-13 02:38:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:19,916 INFO L470 AbstractCegarLoop]: Abstraction has 37669 states and 51194 transitions. [2021-11-13 02:38:19,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-13 02:38:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 37669 states and 51194 transitions. [2021-11-13 02:38:19,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-13 02:38:19,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:19,921 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:19,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:20,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:20,146 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash -920104656, now seen corresponding path program 1 times [2021-11-13 02:38:20,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:20,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133145411] [2021-11-13 02:38:20,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:20,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:20,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:20,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:20,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:38:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:21,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:21,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-13 02:38:22,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-11-13 02:38:23,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:23,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133145411] [2021-11-13 02:38:23,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133145411] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:23,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:23,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:38:23,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672868578] [2021-11-13 02:38:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:23,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:23,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:23,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:23,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:23,241 INFO L87 Difference]: Start difference. First operand 37669 states and 51194 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 02:38:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:24,903 INFO L93 Difference]: Finished difference Result 37675 states and 51199 transitions. [2021-11-13 02:38:24,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:24,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2021-11-13 02:38:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:25,089 INFO L225 Difference]: With dead ends: 37675 [2021-11-13 02:38:25,089 INFO L226 Difference]: Without dead ends: 37673 [2021-11-13 02:38:25,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:38:25,115 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.53ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.04ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:25,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2429 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 16.53ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 50.04ms Time] [2021-11-13 02:38:25,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37673 states. [2021-11-13 02:38:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37673 to 37673. [2021-11-13 02:38:27,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37673 states, 25188 states have (on average 1.2340797205018263) internal successors, (31084), 25948 states have internal predecessors, (31084), 10027 states have call successors, (10027), 2488 states have call predecessors, (10027), 2455 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37673 states to 37673 states and 51197 transitions. [2021-11-13 02:38:27,435 INFO L78 Accepts]: Start accepts. Automaton has 37673 states and 51197 transitions. Word has length 191 [2021-11-13 02:38:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:27,436 INFO L470 AbstractCegarLoop]: Abstraction has 37673 states and 51197 transitions. [2021-11-13 02:38:27,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 02:38:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 37673 states and 51197 transitions. [2021-11-13 02:38:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-13 02:38:27,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:27,441 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:27,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:27,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:27,662 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:27,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash -173974116, now seen corresponding path program 1 times [2021-11-13 02:38:27,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:27,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605657888] [2021-11-13 02:38:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:27,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:27,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:27,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:27,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:38:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:29,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:29,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:30,198 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-11-13 02:38:30,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-11-13 02:38:30,863 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:30,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605657888] [2021-11-13 02:38:30,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605657888] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:30,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:30,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:38:30,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582946938] [2021-11-13 02:38:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:30,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:30,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:30,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:30,865 INFO L87 Difference]: Start difference. First operand 37673 states and 51197 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 02:38:32,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:32,746 INFO L93 Difference]: Finished difference Result 37679 states and 51202 transitions. [2021-11-13 02:38:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:32,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2021-11-13 02:38:32,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:32,903 INFO L225 Difference]: With dead ends: 37679 [2021-11-13 02:38:32,904 INFO L226 Difference]: Without dead ends: 37677 [2021-11-13 02:38:32,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:38:32,921 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.08ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.08ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:32,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2428 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 20.08ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 62.08ms Time] [2021-11-13 02:38:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37677 states. [2021-11-13 02:38:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37677 to 37677. [2021-11-13 02:38:34,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37677 states, 25191 states have (on average 1.2340518439125083) internal successors, (31087), 25951 states have internal predecessors, (31087), 10027 states have call successors, (10027), 2489 states have call predecessors, (10027), 2456 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37677 states to 37677 states and 51200 transitions. [2021-11-13 02:38:35,215 INFO L78 Accepts]: Start accepts. Automaton has 37677 states and 51200 transitions. Word has length 196 [2021-11-13 02:38:35,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:35,223 INFO L470 AbstractCegarLoop]: Abstraction has 37677 states and 51200 transitions. [2021-11-13 02:38:35,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 02:38:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 37677 states and 51200 transitions. [2021-11-13 02:38:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-13 02:38:35,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:35,235 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:35,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:35,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:35,450 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:35,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash -547861392, now seen corresponding path program 1 times [2021-11-13 02:38:35,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:35,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431026720] [2021-11-13 02:38:35,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:35,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:35,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:35,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:35,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:38:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:37,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:37,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-13 02:38:38,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-13 02:38:38,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:38,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431026720] [2021-11-13 02:38:38,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431026720] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:38,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:38,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:38:38,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829345793] [2021-11-13 02:38:38,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:38,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:38,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:38,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:38,884 INFO L87 Difference]: Start difference. First operand 37677 states and 51200 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 02:38:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:40,533 INFO L93 Difference]: Finished difference Result 37683 states and 51205 transitions. [2021-11-13 02:38:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:40,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 201 [2021-11-13 02:38:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:40,638 INFO L225 Difference]: With dead ends: 37683 [2021-11-13 02:38:40,638 INFO L226 Difference]: Without dead ends: 37681 [2021-11-13 02:38:40,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:38:40,654 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.51ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:40,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2427 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 16.40ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 49.51ms Time] [2021-11-13 02:38:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37681 states. [2021-11-13 02:38:42,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37681 to 37681. [2021-11-13 02:38:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37681 states, 25194 states have (on average 1.2340239739620544) internal successors, (31090), 25954 states have internal predecessors, (31090), 10027 states have call successors, (10027), 2490 states have call predecessors, (10027), 2457 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37681 states to 37681 states and 51203 transitions. [2021-11-13 02:38:43,004 INFO L78 Accepts]: Start accepts. Automaton has 37681 states and 51203 transitions. Word has length 201 [2021-11-13 02:38:43,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:43,005 INFO L470 AbstractCegarLoop]: Abstraction has 37681 states and 51203 transitions. [2021-11-13 02:38:43,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 02:38:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 37681 states and 51203 transitions. [2021-11-13 02:38:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-13 02:38:43,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:43,010 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:43,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:43,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:43,234 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:43,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash 581343708, now seen corresponding path program 1 times [2021-11-13 02:38:43,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:43,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745906198] [2021-11-13 02:38:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:43,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:43,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:43,237 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:43,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:38:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:44,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:44,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:45,597 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-13 02:38:45,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-13 02:38:46,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:46,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745906198] [2021-11-13 02:38:46,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745906198] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:46,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:46,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:38:46,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030639021] [2021-11-13 02:38:46,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:46,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:46,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:46,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:46,319 INFO L87 Difference]: Start difference. First operand 37681 states and 51203 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 02:38:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:48,183 INFO L93 Difference]: Finished difference Result 37687 states and 51208 transitions. [2021-11-13 02:38:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:48,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2021-11-13 02:38:48,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:48,297 INFO L225 Difference]: With dead ends: 37687 [2021-11-13 02:38:48,297 INFO L226 Difference]: Without dead ends: 37685 [2021-11-13 02:38:48,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:38:48,313 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.45ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.75ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:48,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2426 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 12.45ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 52.75ms Time] [2021-11-13 02:38:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37685 states. [2021-11-13 02:38:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37685 to 37685. [2021-11-13 02:38:50,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37685 states, 25197 states have (on average 1.233996110648093) internal successors, (31093), 25957 states have internal predecessors, (31093), 10027 states have call successors, (10027), 2491 states have call predecessors, (10027), 2458 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37685 states to 37685 states and 51206 transitions. [2021-11-13 02:38:50,635 INFO L78 Accepts]: Start accepts. Automaton has 37685 states and 51206 transitions. Word has length 206 [2021-11-13 02:38:50,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:50,636 INFO L470 AbstractCegarLoop]: Abstraction has 37685 states and 51206 transitions. [2021-11-13 02:38:50,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 02:38:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 37685 states and 51206 transitions. [2021-11-13 02:38:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-13 02:38:50,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:50,641 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:50,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:50,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:50,855 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash -576133200, now seen corresponding path program 1 times [2021-11-13 02:38:50,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:50,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608327452] [2021-11-13 02:38:50,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:50,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:50,858 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:50,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:38:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:52,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:52,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-13 02:38:53,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-13 02:38:53,964 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:53,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608327452] [2021-11-13 02:38:53,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608327452] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:38:53,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:38:53,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:38:53,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178959921] [2021-11-13 02:38:53,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:53,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:53,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:53,968 INFO L87 Difference]: Start difference. First operand 37685 states and 51206 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 02:38:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:55,892 INFO L93 Difference]: Finished difference Result 37691 states and 51211 transitions. [2021-11-13 02:38:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:38:55,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 211 [2021-11-13 02:38:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:56,052 INFO L225 Difference]: With dead ends: 37691 [2021-11-13 02:38:56,052 INFO L226 Difference]: Without dead ends: 37689 [2021-11-13 02:38:56,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:38:56,073 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 2419 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.74ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:56,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2425 Valid, 7421 Invalid, 20 Unknown, 0 Unchecked, 14.28ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 51.74ms Time] [2021-11-13 02:38:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37689 states. [2021-11-13 02:38:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37689 to 37689. [2021-11-13 02:38:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37689 states, 25200 states have (on average 1.233968253968254) internal successors, (31096), 25960 states have internal predecessors, (31096), 10027 states have call successors, (10027), 2492 states have call predecessors, (10027), 2459 states have return successors, (10086), 9698 states have call predecessors, (10086), 10024 states have call successors, (10086) [2021-11-13 02:38:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37689 states to 37689 states and 51209 transitions. [2021-11-13 02:38:58,825 INFO L78 Accepts]: Start accepts. Automaton has 37689 states and 51209 transitions. Word has length 211 [2021-11-13 02:38:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:58,826 INFO L470 AbstractCegarLoop]: Abstraction has 37689 states and 51209 transitions. [2021-11-13 02:38:58,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 02:38:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 37689 states and 51209 transitions. [2021-11-13 02:38:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-13 02:38:58,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:58,831 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:58,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:59,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:59,034 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 02:38:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:59,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2098252260, now seen corresponding path program 1 times [2021-11-13 02:38:59,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:59,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603721130] [2021-11-13 02:38:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:59,036 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:59,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:59,037 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:59,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412b997a-c3f9-40d9-a20b-c4e4de2b1a25/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:39:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:00,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:39:00,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-13 02:39:01,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-11-13 02:39:02,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:02,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603721130] [2021-11-13 02:39:02,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603721130] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:39:02,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:39:02,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-13 02:39:02,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131071941] [2021-11-13 02:39:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:02,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:39:02,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:02,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:39:02,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:39:02,179 INFO L87 Difference]: Start difference. First operand 37689 states and 51209 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 02:39:04,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:04,342 INFO L93 Difference]: Finished difference Result 40383 states and 53924 transitions. [2021-11-13 02:39:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:39:04,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 216 [2021-11-13 02:39:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:04,470 INFO L225 Difference]: With dead ends: 40383 [2021-11-13 02:39:04,471 INFO L226 Difference]: Without dead ends: 40381 [2021-11-13 02:39:04,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:39:04,484 INFO L933 BasicCegarLoop]: 2551 mSDtfsCounter, 1481 mSDsluCounter, 6217 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 8768 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.71ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.21ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:04,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1486 Valid, 8768 Invalid, 22 Unknown, 0 Unchecked, 13.71ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 56.21ms Time] [2021-11-13 02:39:04,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40381 states.